212768180

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1\times {\mathrm{397}}^1$

素因数の和:744

約数の個数: 48

約数和(自身を含む): 453605376

約数和(自身を除く): 240837196

約数列:

[1, 2, 4, 5, 10, 20, 127, 211, 254, 397, 422, 508, 635, 794, 844, 1055, 1270, 1588, 1985, 2110, 2540, 3970, 4220, 7940, 26797, 50419, 53594, 83767, 100838, 107188, 133985, 167534, 201676, 252095, 267970, 335068, 418835, 504190, 535940, 837670, 1008380, 1675340, 10638409, 21276818, 42553636, 53192045, 106384090, 212768180]

約数ペア:

[(1, 212768180), (2, 106384090), (4, 53192045), (5, 42553636), (10, 21276818), (20, 10638409), (127, 1675340), (211, 1008380), (254, 837670), (397, 535940), (422, 504190), (508, 418835), (635, 335068), (794, 267970), (844, 252095), (1055, 201676), (1270, 167534), (1588, 133985), (1985, 107188), (2110, 100838), (2540, 83767), (3970, 53594), (4220, 50419), (7940, 26797)]